Since about 2 weeks, I am unable to open any attachment (all file types are affected) and images embedded into emails are not shown. Furthermore, I am not able to send emails with attachments as emails just get stuck in the Outbox. I have no problems to open the files on my desktop computer or on the web. It is just in the app.

In the meantime, I have resetted my account in the app multiple times, have deleted and reinstalled the app and even deleted and reinstalled the company profile on the devices. All of this with no effect; the error persists. My colleagues don’t have any problems despite having the same hardware.

Has anybody else the same problems? Is there a solution available that the in-app support doesn’t know of?

But with the latest update (version 3.23.0) 2 days ago, this has been solved and I am finally able to open attachments on iOS again. On the iPad I had to quit and reopen the app 2 or 3 times but now it works as well.

@m-v-r -> I'm on version 3.33.0 and this is still an issue with me. Not sure if it broke between 3.23.0 & 3.33.0, but I see a PGP signature attachment (which came across as S/MIME), but a PDF and two ICS attachments aren't showing on either iPhone or iPad Pro on iOs 12.3.1. I then updated my iPhone to 12.4 and still didn't see the attachments.

Same here. I can send emails from Outlook for iOS on my iPad Pro, using my Office 365 subscription ... as long as they don’t have an attachment. In recent weeks, if I add a PDF or a file I get a failure message:

I’ve tried resetting the account, to no avail. Eventually, I simply have to send the mail using the native iOS Mail app ... using the same ISP and email account.

I had the same issue - after updating the iOS (IpadOS 13.2.), updating the Google Drive and updating Outlook App. I cleared the 'Allowed Apps' in the Google Drive; Allow Microsoft again to be 'Allowed' Still the same issue. Finally what did it was to remove the Google E-Mail account from Outlook and rebuild it. It did ask for permission again (a bit different screen- newer looking) and it WORKED!